Question

if A*B=B*A then prove A=B.
Class 10 Adv Math Question.
chapter-SETS

Answer 1

To show that A is a subset of B it is enough to show that any element in A is in B.Let a be any element in A.

Then a will be in A union B.

But A union B = B. So a is in B.

Since the element is arbitrary, every element of A is in B. ie. A is a subset of B.

Answer 2

Answer:you can see your  answer in the photo

Step-by-step explanation: